Arrowhead assembly



P 13, 1951 B. H. STEINBACHER 2,568,417

ARROWHEAD ASSEMBLY Filed Oct. 19, 1948 2 Sheet's-Sheet 1 m QM 4 9a Sept. 18, 1951 Filed Oct. 19, 1948 B. H. STEINBACHER 1 2,568,417

ARROWHEAD ASSEMBLY 2 Sheets-Sheet 2 Patented Sept. 18, 1951 UNITED STATES PATENT OFFICE annownmn ASSEMBLY Beryl H. Steinbacher, Williamsport, Pa. Application October 19, 1948, Serial No. 55,405 7 Claims. (or 273106.5)

The present invention relates to an arrowhead, and more particularly to an arrowhead adapted to be removably secured to a shaft.

In the art of archery, three of the main objectives are to obtain distance of flight, flat trajectory, and striking force. The accomplishment of these objectives depends in a great degree on the design of the projectile or the arrow being employed. However, often in achieving one of these objectives, efficiency or effectiveness in one or both of the others is sacrificed. For example, when employing an arrow as the projectile, increasing the size of the arrowhead, with the addition of weight to thereby increase the striking force, results in a corresponding loss in the distance of flight, reduction of velocity, andconsequently a much shorter flight having a flat trajectory. Similarly, by reducing the size of the arrowhead to increase the distance of flight and the distance of the flat trajectory, the striking power is correspondingly reduced because of the decrease in size and weight of the arrow.

Therefore, it is desirable, so far as greater effectiveness in the use of the bow and arrow is con cerned, particularly in hunting, to have an arrow the flight of which is increased in distance, has a fiat trajectory, and has sumcient striking force to inflict an effective blow.

Much of the effectiveness of the arrow is dependent upon the design of the arrowhead, and the present invention concerns itself primarily with the provision of an arrowhead having the proper weight, construction and size to accomplish the maximum distance of flight, a greater fiat trajectory distance, and a maximum striking force.

The primary object of the present invention is to provide an arrowhead so constructed and designed that its passage through an animal is impeded by means of mechanism which automatically operates as the arrowhead enters the prey.

Another object is to provide a simple, inexpensive arrowhead which is easily secured to or removed from an arrow shaft.

Still another object is to provide an arrowhead comprising, a body portion provided with a slot therethrough, and means including a blade pivotally secured to said body and adapted to removably seat in said slot. p

In another of its aspects, the present invention relates to a projectile including a shaft, with a cap adapted to removably flt over an end portion of the shaft, with said shaft having an aperture in the head thereof adapted to receive therethrough a screw positioned on an arrowhead por- 2, tion, so that the arrowhead and cap can be secured to the shaft by screwing the arrowhead into the end of the shaft.

Other andfurther objects and advantages of the present invention will be apparent from the following description thereof and from the claims appended thereto.

In the drawing, wherein like numerals refer to like or corresponding parts throughout the several views;

Figure l is a front elevation of the arrowhead attached to the arrow shaft, and embodies the 7 features of the present invention;

Figure 2 is a side elevation of the arrowhead shown in Figure 1, detached from the arrow shaft;

Figure 3 is a sectional view taken along the line 3-3 of Figure 2 in the direction of the arrows;

Figure 4 is a sectional view taken along the line 4-4 of Figure 2, in the direction of the arrows;

Figure 5 is a front viewof a modified form of an arrowhead;

Figure G a side elevation of the arrowhead shown in flgflr 5;

Figure 7 is a front elevation of a modified form of the invention;

Figure 8 is a side elevation of the modified form of the arrowhead shown in Figure 7, when attached to an arrow shaft;

Figure 9 is an enlarged top plan view of the cap which removably fits over the end of the arrow shaft; and

Figure 10 is a sectional view taken along the line ill-l0 of Figure 9, in the direction of the arrows.

Referring now to the drawing, the numeral it] represents the arrow shaft, provided with a threaded ferrule l l on the tip end portion thereof, which ferrule H is adapted to threadedly receive a threaded shaft [2 of the arrowhead, which embodies the features of the present invention. "The arrowhead is generally indicated by the numeral l3 and includes two arrow-shaped segments or faces 14 and 15 which merge at a forward point It. The faces (4 and I5 are preferably integral with the threaded shaft I 2, and as shown in Figure 1, are provided with an aperture I'I extending therethrough, to decrease the weight of the arrowhead while still maintaining a desirable size.

Extending between the segments [4 and I5 is a slot I8, which is transversely disposed 'with reference to slot H. v At the base of the arrow, near the threaded shaft l2, there is pivotally secured to faces l4 and IS, blades 19 and 20'. Blades I9 and 20 are preferably provided with knife edges lid and 20a, and as pointed out, are pivotally secured to the faces I4 and I5, by means of pivot pins I9b and 20b which pass through suitable apertures in said faces I 4 and I5.

Blade I9 is exteriorly provided, at the lower end thereof, near the pivot pin I9b, with an outwardly extending flange portion 2I, while blade 20 is provided with a similar flange 22, said flanges 2I and 22 being adapted to trip or open the blades as the arrow enters game or the like.

The blades I9 and 20 are adapted to seat in recess I8 between faces I4 and I5, while the arrow is in flight, but as the arrow enters game, say a bear, the flanges 2I and 22 will cause the blades I9 and 20 to move outwardly from the slot I8, and as the points of the blades I9 and 20 catch in the flesh of the bear, the bladesw'ill be'swung until such time as the flanges 2I and 22 engage opposite sides of one end portion of the threaded shaft I2. The swinging outwardly of the blades I9 and 20 prevents the arrow from passing through the bear.

Referring now to Figures and 6, I have shown a modified form of an arrowhead which is similar in structure to the arrowhead shown in Figure 1, but is different in that it isprovided with two overlapping blades 30 and M, pivotally secured to the base of the arrow at a single point-by means of a pivot pin 32. As shown in Figures 5 and 6, blades 30-and 3I normally seat in the recess similar to recess I8 and identified in the modified form as I8a. While the blades 30 and 3| substantially lie withinthe recess I8a during the normal flight of the arrow, the points of blades 30 and 3] identified as 30a and 3-Ia do extend beyond the facesof the arrowhead :identifled as Ma and I So, which are similar in shape to the faces I4 and I5 of the-form of the invention shown in Figures 1 through 4. As the arrowhead enters the prey, the points 30a and 3Ia of the blades 30 and.3I respectively, catch in the flesh of the animal and the blades 30 .,g.n d (H are swung outwardly to impede the pro ess-of the arrow through the game.

In the modified form of the arrowhead, as shown in Figures 5 and 6, there is also provided a cutaway portion identified as IIa which extends through the faces Ma and I5a; which cutaway portion is transverse to the slot I to.

Referring now to Figures 7, 8, 9 and of the drawing, the numeral I00 generally represents an arrowhead similar in construction to the arrowhead shown in Figure l, and provided with a cutaway portion IOI in the face thereof, and a slot I02 therethrough, with knife blades I03 and I04 adapted to normally seat in slot knife blade I03 being pivoted to I00 at pivot pin I05, while e blade I04is pivoted to arrowhead I00 at pivot pin I06. Knife blade I03 is provided with a flange I 030. approximately at the pivot point I05 and outwardly therefrom. Knife blade I 04 is provided with a flange I04a near the pivot point I06 and outwardly therefrom. Secured to the arrowhead I00 is a tapered wood screw I01, which is adapted to be screwed into the end of an arrow shaft I08, asbestshowninFigureBofthe drawing. In securing the arrowhead I00 to the arrow shaft I08, I employ a cap I 00 which removably fits over the end portion of the wooden arrow shaft I68. with said cap I 09 having a grooved head- I I0, and also being provided with a central opening HI, having a diameter substantially the same as the upper diameter of the wood screw I07.

In attaching the arrow I00 to the shaft I 08, the arrowhead I00 is positioned so that the I02, with said the arrowhead wood.

screw I 01 is disposed in the opening I II in the cap I09. The cap I09 is then placed over the end of wooden shaft I08, and because of the central position of the aperture III, the end tip I0'Ia of the wood screw I 07 is in dead center, and the arrowhead I00 is screwed into the end of the shaft I08, until such time as the inner shoulder I09a of the cap I09 rests against, or substantially abuts the upper end of the shaft I08. It is noted that the end portion of arrowhead I00 fits into the groove 0' when the parts are in assembled relation.

In operation, when it is desired to employ the arrowheadof the present invention, it is secured to the shaft and the blades are seated in the slot in the arrow-and it isready for use. When the arrow entersits objective. the blades of the arrow are tripped outwardly to impede or prevent the f ing. in said slot in said body,

1 therefrom when the blades are passage of the arrow therethrough.

The arrowhead of the present invention is preferably flat and made of a metal, such as steel, or the like. However, the arrowhead may be of any convenient shape without departing from the invention.

Various modifications of the present invention will be apparent-to those skilled in the art without departing from-the spirit thereof and it is therefore desired to be limited only by the scope of the claims. I

. What I claim is:

1. An. arrowhead oomprising,.a flat body portion including an upper and lower face merging into a point; said upper and lower faces having an aperture extendin therethrough. said body having a slot. tberethrough. transverse to said aperture through said faces, a blade pivotally secured to opposite. sides of said body with said blades adapted toremovably seat in said slot, an outwardly extending trip flange carried by each of said blades. near said pivot points, and a threaded shaft for said body portion.

2. An arrowhead comprising, a flat body portion including an upper and lower face merging into a point, said upper and lower faces having an aperture extending therethrough, said body having a slot therethrough transverse to said aperture through said faces, a blade pivotally secured to opposite sides of said body with said blades adapted to removably seat in said openand an outwardly extending trip flange carried'by each of said blades near said pivot points.

3. An arrowhead comprising, a fiat body portion including an upper and lower face merging into a point, said upper and lower faces having an aperture extending therethrough, said body having a slot extending therethrough transverse to said aperture through said faces, two blades substantially in overlappin position pivotally secured to said body, said blades adapted to removably seat in said slot in said body by having their tip end portions extending outwardly therefrom when the blades are in seated position, and a threaded shaft for said body portion.

4. An arrowhead comprising, a flat body portion including an upper and lower face merging into a point, said upper and lower faces having an aperture extending therethrough, said body having a slot extending therethrough transverse to said aperture through said faces, and two blades substantially in overlapping position pivotally secured to said body, said blades adapted to removabl seat in said slot in said body by having their tip end portions extending outwardly in seated position.

5. In a projectile including a shaft, 9. cap adapted to removably fit over an end portion of said shaft, said cap having an aperture in the head thereof, an arrowhead provided with a screw portion adapted to fit through said aperture in the head of said cap and to be screwed into the end of said shaft, said arrowhead being slotted, and blade means pivotally secured to said arrowhead and normally seated in said slot therein.

6. In a projectile including a shaft, a cap adapted to removably fit over an end portion of said shaft, said cap having a groove in the head thereof and being provided with a centrally disposed screw receiving aperture, a substantially flat arrowhead provided with a screw portion adapted to fit through said aperture in the head of said cap and to be screwed into the end of said shaft to secure said cap and arrowhead thereto, said arrowhead being slotted, and blade means pivotally secured to said arrowhead and normally seated in said slot therein.

'7. An arrowhead comprising a flat body portion including an upper and lower face merging into a point, said body having a slot therethrough, and a blade pivotally secured to opposite sides of said body and adapted to removably seat in said slot and having a leading edge disposed rearwardly of said .point for engaging the flesh of an animal upon the entering movement of the arrowhead into the animal to effect swinging movement of the blade to a position transverse of the arrowhead and at substantially right angles to the direction of inward travel of the arrowhead to prevent the arrowhead from passing through and outwardly of the animal.

BERYL H. STEINBACHER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 933,131 Smith Sept. 7, 1909 1,133,189 Shannon Mar. 23, 1915 1,374,420 Berggreen Apr. 12, 1921 2,212,345 Krieger Aug. 20, 1940 2,289,284 Chandler Jul 7, 1942 

